Novel n-acylsulfonamides



United States Patent 3,041,374 NOVEL N-ACYLSULFONAMIDES Walter A. Gregory, Brandywine Hundred, Del., assignor to E. I. du Pont de Nemours and Company, Wilmington, Del., a corporation of Delaware No Drawing. Filed Mar. 10, 1960, Ser. No. 13,991 5 Claims. (Cl. 260-556) This invention relates to novel N-acylsulfonamides,

certain salts thereof and to the preparation of these compounds.

These products find use in the general field of pest control and in the extraction of potassium from brine soluwherein R is selected from the group consisting of alkyl of from 5 through 8 carbon atoms, alpha-naphthyl, betanaphthyl, and

An-i

in-l where:

A is chloro,

B is selected from the group consisting of chloro, alkyl of 4 to 5 carbon atoms, and pheny-l,

n is a whole number of from 1 through 5,

m is a whole number of from 1 through 2;

X is selected from the group consisting of nitro, chloro, bromo, fluoro, phenylsulfonyl, p-methylphenylsulfonyl, and alkylsulfonyl wherein the alkyl contains from 1 through 12 carbon atoms; Y is selected from the group consisting of hydrogen, chloro, bromo, fluoro, phenyl, and alkyl of 1 through 3 carbon atoms; Z is selected from the group consisting of hydrogen, chloro, bromo, and phenyl; with the proviso that when X is selected from nitro, phenylsulfonyl, p-methylphenylsulfonyl, and alkylsulfonyl, Y must be selected from hydrogen, phenyl, and alkyl of from 1 through 3 carbon atoms, and Z must be hydrogen; and M is selected from the group consisting of hydrogen, sodium, potassium, ammonium, mono-,

di-, triand tetramethylammonium, mono-, di-, and triethylammonium, and calcium and magnesium wherein the second valence of the metal is attached to another As stated previously, these N-acylsulfonamides have a hydrophobic moiety on the sul'fonyl group attached to the nitrogen of the amide. The hydrophobic moiety permits the formation of water-insoluble potassium salts. In addition the alpha carbon of the acyl group carries an electronegative group such that the acids formed on hydrolyzing the compounds with alkali, have ionization constants K greater than 2 '10- "ice The compounds of this invention, when in acid form (M=H), are white crystalline solids, insoluble in aqueous media having a pH less than 4. They are strongly acidic compounds which form neutral salts with strong bases such as the alkali and alkaline earth metal hydroxides. The sodium salts are water-soluble. When a solution of a potassium salt is added to a sodium salt of an N-acylsulfonamide the corresponding potassium salt separates as a solid or immiscible phase. However, the potassium salts are soluble in N-butanol, ethyl acetate, ether and a wide variety of polar organic solvents.

The compounds of the invention may. in general be prepared by the reaction of the appropriate acyl halide or anhydride with a sulfonamide according to the followwhere X may be halogen and Y and Z are as previously described. In cases Where X is other than halogen the compound can be prepared through the halogen-containing compound. Thus the compound wherein X is chlorine or bromine is prepared and then converted to the desired derivative via displacement of the halogen atom, i.e., sodium nitrite can be reacted with a chloroacetylsulf-onamide in dimethylformamide to yield the desired compound:

The reaction of a chloroacetylsulfonamide with a sodium hydrocarbyl sulfinate is also utilized as an alternative route for the formation of the compounds containing the hydrocarbylsulfonyl group.

The compounds of the invention can be prepared by other procedures, such as by treating the appropriate acylsulfonamide with phosphorus pentachloridet to introduce chlorine into the alpha position. Salts of these various acylsulfonamides are readily prepared by adding an equivalent quantity of the appropriate base.

The following examples serve to illustrate but are not intended to limit the instant invention.

EXAMPLE 1 2,2-Dichloro-N-(3,4-Dichlorophenylsulfonyl)-Acetamide A mixture of 108 g. of 3,4-dichlorobenzenesulfonamide and 215 g. of dichloroacetyl chloride is placed in a 500 ml. one-neck round-bottom flask equipped with a reflux condenser and drying tube. The mixture is heated to reflux for 24 hours and then cooled. Carbon tetrachloride is added to cause precipitation of the product which is removed by filtration. The solid is then suspended in 4 of trichloroacetyl chloride in 50 ml. of anhydrous dioxane and 25 ml. of triethylamine at a temperature below 35". After the addition is completed, the reaction mixture is poured into 400 ml. of water which is then 700 ml. of. water and dissolved by the addition of sodium 5 made acid to pH 1 with hydrochloric acid. The solid is bicarbonate. The aqueous solution is then filtered and removed by filtration and washed with water. The crude the solid reprecipitated by acidification of the filtrate to product thus obtained is purified as described above. a pH of 1 with hydrochloric acid. The solid is then re- EXAMPLE moved by filtration and recrysallized from ethylene dichlorideto yield 104 g. of the desired product, M.P. ?jg$gggz i i fb for C8HBC'14NOSS. c, 2851; H, A suspension of 50 g. of 3,5-dichlorobenzenesulfon- 1 49; C1 410 Found: C 833 2922; H, L80, 9 amide in 100 g. of dichloroacetyl chloride is heated to C1 4133 4233; reflux for forty-eight hours. The mixture is allowed to MP cool and carbon tetrachloride is added to the mixture to 2 octylsulfonflacemmide facilitate removal of unreacted acid halide by filtration. The crude product is purified using the procedure out- A mixture of 59. g. of octanesulfonamrde and 70g. lined in Examples 3 or of dichloroacetyl chloride is heated to reflux for three EXAMPLE 6 hours. The mixture is then cooled and carbon tetr'achloride added to form a suspension which is filtered. ZChIOTO-N'(3A-Bichlorophenylsulfonyl)"Acetamlde The solid thus collected is washed with pentane and dried A mixture of 50 g. of 3,4-dichlorobenzenesulfonamide to yield 78 g. of product, M.P. 497. The product is and 100 ml. of chloroacetyl chloride is refluxed for three purified by recrystallization from ethylenedichloride to hours and allowed to cool to room temperature. The yield 64 'g. of the desired compound melting at 98-955". solid thus formed is broken up and suspended in carbon 7 Artdlysis.Calcd. for c H c1 No s= N, 4.61; C], tetrachloride. The suspension is filtered and the solid 23.30. Found: N, 4.70, 4.67; CI, 22.44. washed with additional carbon tetrachloride. The 55 g. EXA 3 of product thus obtained melts at 112137. Purifiation of the product using the method described in x- 2,2 Dzchloro N [p 1 2 3 2;? i a r e yields 33 g. of the desired product melting at 1 mm of 5 Hl-ethylprotynrhenylsulfon- Analysis.-Calcd. for C H l NO S: c, 31.75; H, 2.00. amlde and 150 g. of dichloroacetyl chloride 1s refluxed for Found, C 31 H 1 97 two and one-half hours. .The excess dichloroacetyl chloride isthen removed in vacuo. Water is added to EXAMPLE 7 7 the residue and enough sodium bicarbonate added to dis- 35 2.2- chl r -N-2N p y f y e solve an of the semisolid Present The aqueous 50111- Fifteen grams of dichloroacetyl chloride is added tion is treated with Darco and filtered. Acidification of dropwise to an efi'wienfly, Stirred suspension f 20 7 the filtrate with hydrochloric acid to pH 1 causes the f g. h h gf id i 100 1 f di d formation of an oily layer which solidifies slowly. An 1 f dry t i th l j e. After n f the acid 1 additional Purification y dissolution of the P d in 40 ride is added, the mixture is poured into ice water and base and Brecipitafion with hydrochloric acid Yields allowed to stand until the gummy precipitate thus formed material melting at solidifies. The solid is filtered ofi, washed with water EXAMPLE 4 and dried to yield 21g. of crude product M.P. 82-11 5". 2,2,2-Trichlor0-N-(3,4-Dichloroplienylsulfonyl)- The Product 18 recrystalllzed from dloxene to Acetamide 134435-50- From 30 g. of 3,4-dichlorobenzenesulfonamide and EXAMPLE 8 ml. of trichloroacetyl chloride refluxed in the usual ZIZ'DZCMOY' p f y manner there is obtained 28 g. of crude product melting Acetamlde p at -130". This material is purified by dissolution in 59 A vigorously stirred mixture contaning 219 g. of 3- a sodium bicarbonate solution and filtration of the basic chloro4-isobutylbenkenesulfonamide and-69 g. of finely solution. Acidification of the filtrate with hydrochloric pulverized potassium carbonate in 1800-m1. of anhydrous acid to pH 1 causes precipitation of the desired product. acetone is refluxed for one hour and then 113 'g. of di- The purification procedure is repeated several times to chloroacetyl chloride is added to the mixture slowly. yield 23 g. of product melting at 139-141". The reaction mixture is stirred and heated to reflux for Analysis.--Calcd. for C H Cl NO S: C, 25.87; H, 1.08; an additional eight hours and filtered. Evaporation of Cl, 47.73. Found: C, 26.51; H, 1.41; Cl, 47.27. the filtrate yields the desired product which is purified This compound is also prepared by adding 36.4 g. of by precipitation from an ethyl acetate solution by the 3,4-dichlorobenzenesulfonamide to a solution of 20 g. addition of pentane.

IIIAIBLE I [Further examples of N-itcyisirlfonamides prepared by refluxing sulfonamides and an appropriate a'cylatin'g a'gent with or without an additional'solvnt ai-eas foll'ovisfl 113x. Stflfonamide used Acid chloride or anhydride Solvent Time Product 9---- 3,4dic hlorobenzene-sulionamide, 2,2-dichloropropionyl chloride, None 61mm- 2,2-dich1orn-N-(3,t-dicholorophenylsulion- 221 g. 250 g. ylypropionamide. 10.-- 2,ggichlorobenzene-sulfonamide, Diehloroacetyl chloride, 220 g-.. do 10 hrs... 2,2-dighlorg-N-(2.4dichlorophenyls1flionyl)- I ace arui e.

11.-- 3,4231;chlorobenzene-sulfonamide, Difluoroacetic anhydride, g-- Dioxane, 800 g-- 1 day.... N-(3,fidichorophenylsulionyl)2,2-difiuo- 12.-- 2,6-dichlorobenzendstilionamide, 2-chloro-2-phenylacetyl ehlor- Toluene, 1,000 g. 2 days.-. 2-chloro-N-(2,6-dichloropheny1sulionyl)-2- g. ide,'149 g. phenylaoetamide.

13.-- 3,52-g11ch1orobenzeneasulfonamtde, Chloroacetyl chloride, 250 g.-... None 12 hrs... 2chloroCl1 I-(3,5-dichlorophenylsulfonyD- 3. ac e.

TABLE IContinued I13x Sulfonamlde used Acid chloride or anhydride Solvent Time Product 0.

l4..- 2,2,2-trichloro-N- (2,4,5trlchloro- Trichloroacetyl chloride, 250 g. ..do 1 day.- 2,2,2 trichloroacetyl N (2,4,5 trichlorophenylsulfonybacotanude, 256 g. phenylsulfonyDacetamide. 15.-- 3,5 dichlorobenzenesulfonamide, 2 chloropropionyl chloride, 250 do 8 hrs...- 2-chloro-N (3,5 -dichlorophenylsulfonyl) 221 g. propionamide. 16... 3,5 dighlggophenylbenzenesulfon- Fluoroacetic anhydride, 139 Dloxane, 800 m1 1 day. N (3 (51-dichlorophenylsulfonyl)fluoroacetami e, g. a e. 17-.- p- Chlorobenzenesulfonamide, 180 Bromoacetyl bromide, 202 g --do 2 brtomod- N (p chlorophenylsulfonyl) g. ace arm e. 18--. do Dlehloroacetylchloridc, 250 g 6 hrs 2,2 {lichlgro (p ehlorophcnylsulfonyl) ace arm e. 19.-. ----.do 2-chloropripionylchloride, 240 g. 1 day.--. N (p chlorophenylsulfonyl) 2 chloropropionamide. 20-.. -....do 2-chlorobutyryl chloride, 142 g.. Benzene, 800 a ..do 2 chloro N (p chlorophenylsulfonyl) ml. butyramlde. 21.-. p Butylbenzenesulfonamide, 184 Ohloroacetylehloride, 220 g None 0 hrs.-.- N (p lgltylphenylsulfonyl) 2 chlorog. ace ann e. 22.-- -.-do 2,.]-6d5ichloropropionyl chloride, Dioxane 1 day. N-(p-butyliphenylsulfonyl)-2,2-diehloroprog. pionami e. 23-- l-naphthylsulfonamide, 158 g Tn'ehloroacetyl chloride, 250 g..- None 2 days... 2,2,2-igichloro-N l -naphthylsulfony1acetam e. 24--- 2-naphthylsulfonamide, 158 g Trifluoroaoetic anhydride, 210 Dioxane 1 day 2,2gtrifiuoro-N-2-naphthylsu.lfonylacetam- 1 e. Oetylsulfonamide 193 g. Trichloroacetyl chloride, 250 g..- 10 hrs.-- 2,2,2-trichloro-N-octylsull'onylacetamide.

d 2-chloropropionyl chloride, 240 do...- 2chloro-N-octylsulfonylacetarnide.

Difluoroacetic anhydride, 175 g.- 1 day.- 2,2-ditluoro-N-octylsulfonylacetamideL Trichloroacetyl chloride, 250 .6 hrs 2,2,2 trichloro N [p (1 ethylpropyD- phenylsulfonyflac etamide. 2-chloropropionyl chloride, 240 g. hrs 2 hloro N [p (1 ethylpropyl) phenylsulfonyl1propionamide. 4 butyl 2 chlorobenzenesulfon- 2 bromo 2 phenylacetyl bro- Benzene, 1,000 g- 1 day- 2 bromo N (4 butyl 2 ehlorophenylamide, 219 g. mide, 278 g. sulfonyl)-2-phenylacetamide. 31--- 2-chloro4-pentyl benzenesulion- 2,2 dichloro 2 phenyl acetyl Toluene, 1,000 g. .do 2,2 dichloio N (2 chloro 4 pentylam de, 233 g. chloride, 223 g. phenylsulfonyl)-2-pheny1aeetamide. 32--- 2,5 dichlorobenzene sulfonamide, 2 ehloro 3 phenylpropionyl Benzene, 1,000 g. 10 hrs. 2- chloro -N (2,5 dichlorophenylsullonyD- 221 g. chloride, 202 g. 3-phenylpropionamicle. 33--. 2,4,-diehlorobenzene sulfonamlde, 2-fluoro 2- phenylacetyl chlo- Dloxane, 1,000 g. 14 hrs... N (2,4-dichlorophenylsulfonyl) -2-fiuoro- 331 g. ride, 207 g. 2-pheny1acetamide.

EXAMPLE 34 N (3 ,4-Dichlor0pheny lsulfonyl) -2-Methylsulfonyl- Acetamide TABLE II EXAMPLE 35 N (3,4 -Dichl0r0phenylsul fonyl -2-N itroacetamide A mixture of 32.5 g. of the sodium salt of 2-chloro-N- (3,4-dichlorophenylsulfonyl) acetamide and 8 g. of sodium nitrite in 150 m1. of dimethylforrnarnide is heated to 100 for six hours. poured into 300 ml. of Water and filtered to remove any insoluble impurities present. The product is then isolated by the acidification of the filtrate and maybe purified by recrystallization from ethylenedichloride.

The mixture is allowed to cool and [Further examples of N-acylsulfonamides prepared by the metathetieal reaction involving an anion and the salt of a metal, -2-halo-6aeylsulfonamide of this invention are as follows Ex. Metal salt of 2-halo- Sodium salt used Solvent Time Temp. Product N-ecylsulfonarmde used 36.-- 2- chloro N (3,4-dlchlorophenylsulfo Sodium ethane- Ethanol, 800 ml.-- 6 hrs-.. Reflux- N (3,4 dlchlorophenylsulfonyl) 2 nyD-acetamide, sodium salt, 161 g. sulfinate, 58 g. ethylsulfonylacetamide.

37..- 2 chloro N (3,4 dichlorophenylsulio Sodium methanedo do do (3,4 diehlorophenylsulfonyl) 2 11183;) propionamide, potassium salt, sulfinate, 51 g. methylsulfonylpropionamlde.

38--- 2.- chloro-N (3,4- dichlorophenylsulfo- Sodium dodeeane- .-...d0 -..do.. --.do..... N (3,4 dichlorophenylsulionyl) 2 nyl)-acetamide, potassium salt, 188 g. sulfinate, 128 g. dodecylsulfonylacetamide.

39.-- 2- chloro -N (3,4- dichlorophenylsulfo Sodium nitrite, Dimethyl-form- 1 day-..- 100-- N (3,4 dichlorophenylsulionyl) 2 nyl)-acetamide, sodium salt, 161 g. 35 g. amide, 700 ml. mtroacetamlde.

40-.- 2-chloro-N- (3,4-dichlorophenylsulfodo Dimethyl-form- 1% days. l00-- N (3,4 dichlorophenylsulfonyl) 2 n D-butymmlde, sodium salt, 176 g. amide, 900 ml. nltrobutyramide.

41... 2-chloro -N (3, 5 dichlorophenylsul- ..---do Dimethylform 1 day.... l00- N 3, 5 dichlorophenylsulfonyD- fonyD-acetamide, sodium salt, 161 g. amide, 750 ml. 2-nltroacetamide.

42... 2 chloro N (3, 5 dichlorophenylsul- Sodium methane- Ethanol, 800 11.11-- 8 hrs..-. Reflux-. (3. 5 dichlorophenylsulfonyD- fosnyl) propionamide, sodium salt, sulfinate, 51 g. 2-methylsulfonylproplonamide. 1 9 g.

43... 2 chloro N (p chlorophenylsulfo- Sodium dodeeane- .do 1 day.... ..-do---.. N (p chlorophenylsulfonyl) 2 nyl) acetumide, sodium salt, 144 g. sulfinate, 128 g. dodecylsulfonylacetamide.

44.-- N (p-butylphenylsulfonyl) -2-chloro- Sodium methane- Ethanol, 700 ml..- ..-do. .-.do. N (p butylphenylsuli'onyl) 2 proplonamide, sodium salt, 145 g. sulfinate, 51 g. methylsulfonylpropionamlde.

--. N (p-butylphenylsulfonyl) -2-chloro- Sodium nitrite, Dimethylform- 2 days.-. N f (p butylphenylsulfonyl) 2 butyramide, sodium salt, 153 g. 35 g. amide, 800 ml. mtrobutyramlde. .7

46... 2 chloro- N 2 -naphthylsulionylacet- .do do 1 day.- 100--. N (2 naphthylsulfonyl) 2, 2 d1- amide, sodium salt, g. chloroacetamlde.

47...- 2 chloro N 1 naphthylsulionylacet- Sodium methane- Ethanol, 800-ml... ---do---. Reflux.. 2 methylsulfonyl N 1 -naphthylsulamide, sodium salt, 135 g. sulfinate, 51 g. fonylacetamide.

48--. 2-chloro-N-octylsulfonylbutyramide, so- Sodium nitrite, Dimethylform- 2 days.-. 100---.. 2-nitro-N-octylsulfonylbutyramide.

dium salt, l54.g. 35 g. amide, 800 ml.

49... 2-ehloro-N-octylsulfonylacetamide, so- Sodium propane- Ethanol, 800 ml... 10 hrs--. Reflux N-octylsulfonyl-2-propylsulionylacet dium salt, g. sulfiuate, 65 g. amide.

50--. 2-chloro-N-(2, 3-diehlorophenylsulfonyl) Sodium benzene- Ethanol, 1,800 1 day.--. do..... N-(2,3-dichlorophenylsulfonyl)-2-phenacetamide, sodium salt, 321 g. sulfinate, 164 g. ml. ylsulfonylaeetamide.

51-.. 2-chloro- -(2, 4, fi-trichlorophenylsul- Sodium-p-toluene ----do -.-do..-. .-.do.... N-(2, 4, B-trichlorophenylsulfonyl)-2- fonyl) propionamide, sodium salt, 356 sulfinate, 178 g. (p-toluene) sulfonylpropionamide. g.

ticle size substantially less than 10 microns.

7 l EXAMPLE 5 2 2,2-Dichlor-N- (3,4Dz'chlorophenylsulfonyl) -Acetamide,

Other compounds which can be substituted in place of the active ingredient of the above example are:

Sodium Salt Example B: I

To a stirred suspension of 44 g. of N-(3,4-dichloro- 5 Nigggggomphenylsulfcnyl)amsthflsulfonyl phenylsulfonyhacetamide in 100 m1. of water one adds 125 g of sodium bicarbonate The solution is filtered Examp 16 Z-chloro-N-(2,5-dichlorophenylsulfonyl)-3-phenyland the water 15 removed 111 vacuo and the product IS 013- propionamide tained as a crystalline residue.

Example D: 7 EXAMPLE s3 10 N-(p-butylphenylsulfonyl)-2,2-dihloropropionamide. 2,2-Dichlor0-N-(3,4-Dichlorophenylsulfonyl) -Acetamide, a p E1 Parts y Potassium Salt 2,2-dichloiglo-N-g,4dichlorophenylsulfonyl)- 10 acetami e, so ium sa t A suspension of 34 g. ot N-(3,4-dichlorobenzenesul- 15 Tetramethylthiuram disulfide; 750 fonyl)-a,a-dtchloroacetamide in 100 ml. of water 15 stirred Kaolin 20.0 as l5 g. of potassium bicarbonate is added. A rap d evo- Methocel 15V (methyl cellulose adhesive and lution of carbon dioxide occurs and a White solid sepdis persmg agent) 3.0 arates. The products is filtered and washed well with Alkanol B 1.0 water and dried. The yield 1s 30 g. of white crystals, M.P. 89-93". This product may be purified by dissolving in Mlxmg gnnfimg and appilcanon the Same as m ethyl acetate and precipitating the product by adding cy- Example the excepnon that tree seeds are clohexane. By repeating this twice, a sample is obtained. i f i i g m y euse in ea ove orm aioninpaceo eac ve Analysis.Calcd. for c mcnno sm c, 25.61; H, ingredifimtherein- 1.07; Cl, 37.81. Found: C, 25.36; H, 3.51; Cl, 36.33. 9 Example F:

' EXAMPLE 54 Z-ghitggifi,glclichlorophenylsulfonyl)acetamide, Z-Chloro-N-(2,4-Dichlorophenylsulfonyl)-Acetamide, Example G: I

Ammonium Salt N-(3,4-dichlorophenylsu1fonyl)-2-nitroacetamide.

To an aqueous suspension containing 30.1 g, of 2- Example H: Parts by wt. chloro-N-(2,4-dichlorophenylsulfonyl) acetamide is added 2-chloroN-(2,4-dichlorophenylsulfonyl)-acet- 100 ml. of 28% ammonium hydroxide with vigorous amide, sodium salt stirring. The product is obtained after removal of the Methoc'el 15 a 1.0

water. Water 94.0

TABLE in [Additional examples of salts of N-aeylsulfonamides prepared by the reaction of the appropriate N-acy'lsulfonamide acid and an aqueous solutioncontaining the desired 'cation are as follows :1

Ex Aoylsulfonamide and g. taken Cation source Product E5 2,Z-diehloro-N-octylstflfonylacetamlde, 305 g Dimethylamine, g 2,2-ditchloro-N-octylsulfonylacetamide, dimethyl ammonium sa 56... 2,2-diehloro-N-[p(1-ethylpropyl)phenylsuiionyl]- Trimethylamine, 70 g 2,2- dichloro-N-{p- (i-ethylptopyl)-phenylsulionyl]acetamide,

aeetamide, 338 g. trim'ethyl' ammonium salt. 57--- 2,2,2-t-richloro-N-(3,-dichlorophenylsmfonyl)acet- Triethylamine, 110 g 2,2,2-trichloro- -(3,4-dichlorophenylsullonyl)acetamide, triathamide, 371 g. yl ammonium salt. v 58--- 2,2- dichloro-N- (3,5-dichlorophenylsulfonyl)aeetn-Butylamine, 85 g 2,2-dioh1oro-N-(3,5-diehlorophenylsulionyl)acetamide, n-butyl amide, 3 g. ammonium salt. 59..- 2-chloro- -(3,4-dichlorophenylsulfonyl) acetamide, Tetra-methyl ammonium Z-chloro-N-(EIA- 'ch10r0phenylsulfonyl)-aoetamide, tetramet-hyl 304 g. hydroxide, 91 g. ammonium sal V 60... Z-chloro-N-(2,o-dichlorophenylsulfonyl) -2-phenyl- Calcium chloride, g. 2-cl1loro-N- (2,6-dichlorophenylsulfonyl)-2-phenylaoetamide,cal-

acetamide, 380 g. cium salt. 61--- N-3 (13,4-dichlorophenylsulfonyl)-2-nitroacetamide, Magnesium chloride 48 g, N-(ifiz-dichlorophenylsulfonyl)-2-nitroacetamide, magnesium 5 g. 7 so 62... N (3,4- dichlorophenylsulfonyl)-2-phenylsulfonyl- Ethylamine, 45 g N (3,4- dichlorophenylsulfonyl) 2 phenylsulfonylacetamide, aeetamide, 444 g. ethyl ammonium sal Examples of CompositionsUseful for Coating Seeds to Render Them Obnoxious to Rodents, Rabbits, Etc.

Goulac (sodium lignin .sulfonate) dispersing agent The ingredients are blended in a ribbon type blender and then ground in a hammer or anair'attrition mill to a par- Two pounds of this mixture are dispersed in one gallon of Water and a the resulting slurry is applied toDouglas fir seeds at the rate of 5 ounces per bushel of seed. This treatment renders the seeds obnoxious to rats.

A solutionof the above ingredients is appliedto coniferous tree seeds at the rate of 5 ounces per bushel of'seed or the amount applied can be varied by first diluting the concentrated solution with water. For instance, the concentrated solution containing 5% of the compound is diluted with 4 parts of water and this diluted solution applied to seed at the rate of 5 ounces per bushel of seed. The following compounds may be used in a like manner to that described in the preceding example.

Example I:

2,2-dichloro-N-1-naphthylsulfonylacetamide, sodium salt. Example J:

2,2-difluoro-N-octylsulfonylacetamide, sodium salt. Example K: Parts by wt. 2chloro-N-octylsulfonylacetamide 20 Bentonite 20 Kaolin 58 Alkanol B 2 9 The ingredients are blended in a ribbon typeblender and then ground in an air attrition mill to a particle size substantially less than 10 microns. Two pounds of this compound are dispersed in one gallon of water and the resulting slurry is applied to seed at the rate of ounces per bushel of Douglas fir seed. It is found that rats avoid eating the treated seed.

Additional compounds which may be formulated in the manner described above are:

one gallon of water then adding"5 ounces per bushel of seed.

This application is a continuation-in-part of my copending US. application Serial No. 646,962, filed March 19, 1957, for Product and Process, now abandoned.

I claim:

1. A compound of the formula:

wherein R is selected from the group consisting of alkyl of from 5 through 8 carbon atoms, alpha-naphthyl, betanaphthyl, and

A n-l B art where: A is chloro, B is selected from the group consisting of chloro, alkyl of 4 to 5 carbon atoms, and phenyl, It is a whole number of from 1 through 5, m is a whole number of from 1 through 2; X is selected from the group consisting of nitro, chloro, bromo, fiuoro, phenylsulfonyl, p-methylphenylsulfonyl, and alklysulfonyl wherein the alkyl is 1 through 12 carbon atoms; Y is selected from the group consisting of hydrogen, chloro, bromo, fluoro, phenyl, and alkyl of 1 through 3 carbon atoms; Z is selected from the group consisting of hydrogen, chloro, bromo, and phenyl; with the proviso that when X is selected from the group consisting of nitro, phenylsulfonyl, p-methylphenylsulfonyl, and alkylsulfonyl, Y must be selected from the group consisting of hydrogen, phenyl, and alkyl of from 1 through 3 carbon atoms, and Z must be hydrogen; and M is selected from the group consisting of hydrogen, sodium, potassium, ammonium, monomethylammonium, dimethylammonium,

tn'methylammonium, and tetramethylammonium, monoethylammonium, diethylammonium, and triethylamrnonium, calcium and magnesium wherein the second valence of the metal is attached to another 2. 2,2-dichloro N (3.4-dichlorophenylsulfonyl)-acetamide.

3. 2,2-dichloro N-[p-(l-ethylpropyl)phenylsulfonyflacetamide.

4. 2,2,2-trichloro N (3,4-dichlorophenylsulfonyl)- acetamide.

5. 2,2-dichloro-N-2-naphthylsulfonylacctamide.

No references cited. 

1. A COMPOUND OF THE FORMULA: 